I have found one use case. Although, I wonder if it's cost effective. Give an LLM a bunch of scientific papers and ask for a summary. It makes a kind of nice summary to help you decide what order to read the papers in.
It's also OK at low stakes language translation.
I also tried to ask it for a vocabulary list for the papers. Some of it was good but it had a lot of serious but subtile and hard to catch errors.
It's kind of like a gaussian blur for text.